DC Motors A dc motor can be easily identified by Size of conductor Winding Yoke Commutator Size of conductor Winding Yoke Commutator ANSWER DOWNLOAD EXAMIANS APP
DC Motors Carbon brushes are preferable to copper brushes because _____ They have longer life They reduce sparking They have lower resistance They reduce armature reaction They have longer life They reduce sparking They have lower resistance They reduce armature reaction ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which one of the following is not necessarily the advantage of D.C. motors over A.C. motors? High starting torque Wide speed range Low cost Stability High starting torque Wide speed range Low cost Stability ANSWER DOWNLOAD EXAMIANS APP
DC Motors The greatest percentage of power loss in a dc motor is due to Friction loss Copper loss Core loss Windage loss Friction loss Copper loss Core loss Windage loss ANSWER DOWNLOAD EXAMIANS APP
DC Motors Usually wide and sensitive speed control is desired in case of Colliery winders Elevators Centrifugal pumps Steel rolling mills Colliery winders Elevators Centrifugal pumps Steel rolling mills ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a dc motor can be controlled by changing Armature circuit resistance All of the listed here Aplied voltage Is flux Armature circuit resistance All of the listed here Aplied voltage Is flux ANSWER DOWNLOAD EXAMIANS APP
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